Gidday,
The Linux man-pages maintainer proudly announces:
man-pages-4.03 - man pages for Linux
This release includes input and contributions from
nearly 40 people.
Tarball download:
http://www.kernel.org/doc/man-pages/download.html
Git repository:
https://git.kernel.org/cgit/docs/man-pages/man-pages.git/
Online changelog:
http://man7.org/linux/man-pages/changelog.html#release_4.02
A short summary of the release is blogged at:
http://linux-man-pages.blogspot.com/2015/12/man-pages-403-is-released.html
The current version of the pages is browsable at:
http://man7.org/linux/man-pages/
You are receiving this message either because:
a) You contributed to the content of this release.
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c) I have information (possibly inaccurate) that you are the maintainer
of a translation of the manual pages, or are the maintainer of the
manual pages set in a particular distribution, or have expressed
interest in helping with man-pages maintenance, or have otherwise
expressed interest in being notified about man-pages releases.
If you don't want to receive such messages from me, or you know of
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Cheers,
Michael
==================== Changes in man-pages-4.03 ====================
Released: 2015-12-05, Munich
Contributors
------------
The following people contributed patches/fixes or (noted in brackets
in the changelog below) reports, notes, and ideas that have been
incorporated in changes in this release:
Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Alexei Starovoitov <ast@xxxxxxxxxxxx>
Andy Lutomirski <luto@xxxxxxxxxx>
Arto Bendiken <arto@xxxxxxxxxxxx>
Carlos O'Donell <carlos@xxxxxxxxxx>
Casper Ti. Vector <caspervector@xxxxxxxxx>
Daniel Borkmann <daniel@xxxxxxxxxxxxx>
David Drysdale <drysdale@xxxxxxxxxx>
Eric B Munson <emunson@xxxxxxxxxx>
Florian Weimer <fweimer@xxxxxxxxxx>
Gabriel F. T. Gomes <gftg@xxxxxxxxxxxxxxxxxx>
Heinrich Schuchardt <xypron.glpk@xxxxxx>
Ingo Molnar <mingo@xxxxxxxxxx>
Jakub Wilk <jwilk@xxxxxxxxx>
Johannes Stüttgen <Johannes.Stuettgen@xxxxxxxxx>
Jonathan Wakely <jwakely@xxxxxxxxxx>
Jonny Grant <jg@xxxxxxxx>
Kees Cook <keescook@xxxxxxxxxxxx>
Maria Guseva <m.guseva@xxxxxxxxxxx>
Masami Hiramatsu <masami.hiramatsu.pt@xxxxxxxxxxx>
Meikun Wang <alikewmk@xxxxxxxxx>
Michael Kerrisk <mtk.manpages@xxxxxxxxx>
Michal Hocko <mhocko@xxxxxxxx>
Mike Frysinger <vapier@xxxxxxxxxx>
Namhyung Kim <namhyung@xxxxxxxxx>
Nikola Forró <nforro@xxxxxxxxxx>
Olivier TARTROU <olivier.tartrou@xxxxxxxxx>
Peter Hurley <peter@xxxxxxxxxxxxxxxxxx>
Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Serge Hallyn <serge.hallyn@xxxxxxxxxxxxx>
Silvan Jegen <s.jegen@xxxxxxxxx>
Stefan Tauner <tauner@xxxxxxxxxxxxxxxxx>
Steven Rostedt <rostedt@xxxxxxxxxxx>
Tobias Stoeckmann <tobias@xxxxxxxxxxxxxx>
Tycho Andersen <tycho.andersen@xxxxxxxxxxxxx>
Ville Skyttä <ville.skytta@xxxxxx>
Vince Weaver <vincent.weaver@xxxxxxxxx>
Zeng Linggang <zenglg.jy@xxxxxxxxxxxxxx>
Apologies if I missed anyone!
Newly documented interfaces in existing pages
---------------------------------------------
perf_event_open.2
Vince Weaver
4.1 adds AUX sample support
Vince Weaver
4.1 data_offset and data_size fields
Vince Weaver [Alexander Shishkin]
Document aux_{head,tail,offset,size} support
Vince Weaver
4.0 update rdpmc documentation
Vince Weaver
4.1 adds PERF_RECORD_ITRACE_START
Vince Weaver
Document 4.1 clockid support
Vince Weaver [Steven Rostedt, Masami Hiramatsu]
4.1 PERF_EVENT_IOC_SET_BPF support
Vince Weaver
4.1 adds AUX_FLAG_OVERWRITE support
Vince Weaver
4.1 PERF_SAMPLE_BRANCH_CALL_STACK
Vince Weaver
4.1 adds aux_watermark
Vince Weaver
Add possibility of EBUSY error
prctl.2
Andy Lutomirski [Kees Cook, Serge Hallyn]
Document operations for ambient capabilities
Michael Kerrisk
Rework PR_CAP_AMBIENT text
Note that arg4 and arg5 must be zero for CAP_AMBIENT
RETURN VALUE: Add PR_CAP_AMBIENT + PR_CAP_AMBIENT_IS_SET case
ERRORS: document PR_CAP_AMBIENT error cases
__ppc_set_ppr_med.3
Gabriel F. T. Gomes
Document PPC functions providing access to PPR
GNU C Library commit 1747fcda4902a3b46183d93fb16ed9b436b2608b
extends the priorities that can be set to the Program Priority
Register (PPR), with the functions: __ppc_set_ppr_very_low(3)
and __ppc_set_ppr_med_high(3).
capabilities.7
Andy Lutomirski [Kees Cook, Serge Hallyn]
Document ambient capabilities
Michael Kerrisk
Various additions and reworkings for ambient capability text
New and changed links
---------------------
__ppc_set_ppr_med_high.3
Gabriel F. T. Gomes
New link to __ppc_set_ppr_med.3
__ppc_set_ppr_very_low.3
Gabriel F. T. Gomes
New link to __ppc_set_ppr_med.3
Changes to individual pages
---------------------------
mremap.2
Eric B Munson [Michal Hocko]
Add note about mremap() with locked areas
When mremap() is used to move or expand a mapping that is locked
with mlock() or equivalent it will attempt to populate the new
area. However, like mmap(MAP_LOCKED), mremap() will not fail if
the area cannot be populated. Also like mmap(MAP_LOCKED) this
might come as a surprise to users and should be noted.
open.2
Michael Kerrisk [David Drysdale]
Remove accidental mention of O_TTY_INIT
An earlier edit mentioned O_TTY_INIT as a file creation flag.
That's true, according POSIX, but Linux does not implement
this flag, so remove mention of it.
pipe.2
Michael Kerrisk
SEE ALSO: add splice(2)
prctl.2
Michael Kerrisk
Reorder options alphabetically
Employ a pseudo-alphabetical order, ordering options after removal
of any "PR_", "PR_SET_", or "PR_GET" prefix.
Michael Kerrisk
Fix alphabetical misplacements in ERRORS
ptrace.2
Tycho Andersen
Document PTRACE_O_SUSPEND_SECCOMP flag
Michael Kerrisk
Document /proc/sys/kernel/yama/ptrace_scope
Michael Kerrisk
Note that PTRACE_ATTACH cannot be applied to nondumpable processes
Michael Kerrisk
SEE ALSO: add prctl(2)
reboot.2
Casper Ti. Vector
1-argument reboot() is also provided by alternative libc
seccomp.2
Michael Kerrisk
Describe use of 'instruction_pointer' data field
Michael Kerrisk [Kees Cook]
Note why all filters in a set are executed even after SECCOMP_RET_KILL
signalfd.2
Michael Kerrisk
Describe semantics with respect to SCM_RIGHTS
syscalls.2
Michael Kerrisk
Add mlock(2)
Michael Kerrisk
Add userfaultfd()
daemon.3
Michael Kerrisk [Johannes Stüttgen]
Note that daemon() is buggy with respect to controlling tty acquisition
dirfd.3
Jonathan Wakely
Remove outdated NOTES
As stated in the SYNOPSIS, since glibc 2.10 this function is also
declared by the relevant X/Open and POSIX macros.
dlopen.3
Michael Kerrisk
Make it more explicit that LD_BIND_NOW overrides RTLD_LAZY
Michael Kerrisk [Florian Weimer]
Correct the pathname used in EXAMPLE
Quoting Florian:
This does not work because libm.so can be a linker script:
handle = dlopen("libm.so", RTLD_LAZY);
The proper way to do this is to include <gnu/lib-names.h>
and use LIBM_SO.
See https://bugzilla.kernel.org/show_bug.cgi?id=108821
Michael Kerrisk
Include a shell session showing build/run in EXAMPLE
Michael Kerrisk
Change arguments to main() to "void" in EXAMPLE
fgetgrent.3
Zeng Linggang
ATTRIBUTES: Note function that is not thread-safe
fgetpwent.3
Zeng Linggang
ATTRIBUTES: Note function that is not thread-safe
getauxval.3
Michael Kerrisk
Add some details for AT_SECURE
getspnam.3
Zeng Linggang
ATTRIBUTES: Note functions that are/aren't thread-safe
mallinfo.3
Zeng Linggang
ATTRIBUTES: Note function that is not thread-safe
mallopt.3
Carlos O'Donell
Document M_ARENA_TEST and M_ARENA_MAX
posix_fallocate.3
Michael Kerrisk
Clarify text relating to MT-safety
Carlos O'Donell
Mention glibc emulation caveats
termios.3
Olivier TARTROU
Add missing details on behaviour of PARMRK
For a serial terminal, with a specific configuration, input bytes
with value 0377 are passed to the program as two bytes, 0377 0377.
tty_ioctl.4
Michael Kerrisk [Peter Hurley]
Note that TIOCTTYGSTRUCT went away in Linux 2.5.67
core.5
Ross Zwisler
Add info about DAX coredump filtering flags
Kernel 4.4 added two new core dump filtering flags,
MMF_DUMP_DAX_PRIVATE and MMF_DUMP_DAX_SHARED.
These flags allow us to explicitly filter DAX mappings.
This is desirable because DAX mappings, like hugetlb
mappings, have the potential to be very large.
nsswitch.conf.5
Nikola Forró
Add list of files being read when "files" service is used
This is not mentioned anywhere. Users can assume that the file
being read is something like /etc/$DATABASE, but that's not
always the case. It's better to explicitly specify which
file is read for each respective database. The list of
files was acquired from glibc source code.
proc.5
Heinrich Schuchardt [Michael Kerrisk]
Add details for threads-max
Add detail information for threads-max.
The checks for minimum and maximum values exist since kernel 4.1.
https://lkml.org/lkml/2015/3/15/96
Heinrich Schuchardt
/proc/sys: Describe whitespace characters
Michael Kerrisk
Document 'CapAmb' in /proc/PID/status
Michael Kerrisk
Add reference to ptrace(2) for /proc/sys/kernel/yama/ptrace_scope
aio.7
Michael Kerrisk [Meikun Wang]
Add missing include file, <fcntl.h>, to example program
mq_overview.7
Michael Kerrisk [Arto Bendiken]
Document QSIZE bug that appeared in 3.5 and was fixed in 4.2
path_resolution.7
Michael Kerrisk
Clarify recursive resolution of symlinks and note limits
pipe.7
Michael Kerrisk
SEE ALSO: add splice(2)
rtld-audit.7
Namhyung Kim
Fix (typo) error in la_pltenter() description
s/la_pltenter()/la_pltexit()/
la_pltenter() is called regardless of the value of
framesizep but la_pltexit() is called only if la_pltenter()
returns with non-zero framesizep set. I spent long time to
figure out why la_pltexit() is not called at all.
signal.7
Michael Kerrisk [Michael Hocko]
Note async-signal-safe functions added by POSIX.1-2008 TC1
tcp.7
Daniel Borkmann [Michael Kerrisk]
Improve paragraphs on tcp_ecn and add tcp_ecn_fallback bullet
Improve description of tcp_ecn, fix the RFC number and it's
not a boolean anymore since long time, and add a description
for tcp_ecn_fallback.
See also kernel doc under Documentation/networking/ip-sysctl.txt
on tcp_ecn and tcp_ecn_fallback.
ld.so.8
Michael Kerrisk
LD_POINTER_GUARD has been removed in glibc 2.23
Michael Kerrisk
Describe secure-execution mode
Michael Kerrisk [Maria Guseva]
Replace mentions of set-UID/set-GID programs with secure-execution mode
Inspired by a patch from Maria Guseva.
Maria Guseva [Silvan Jegen]
LD_DEBUG is effective in secure-execution mode if /etc/suid-debug exists
--
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/
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